A complementary approach to quantify the basic GSI chart considering scale effect on rock structure
Geological strength index (GSI) has been widely used as an input parameter in predicting the strength and deformation properties of rock masses. This study derived a series of equations to satisfy the original GSI lines on the basic GSI chart. Two axes ranging from 0 to 100 were employed for surface...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Journal of Rock Mechanics and Geotechnical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674775524003378 |
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| author | Harun Sonmez Gulseren Dagdelenler Yilmaz Ozcelik Murat Ercanoglu |
| author_facet | Harun Sonmez Gulseren Dagdelenler Yilmaz Ozcelik Murat Ercanoglu |
| author_sort | Harun Sonmez |
| collection | DOAJ |
| description | Geological strength index (GSI) has been widely used as an input parameter in predicting the strength and deformation properties of rock masses. This study derived a series of equations to satisfy the original GSI lines on the basic GSI chart. Two axes ranging from 0 to 100 were employed for surface conditions of the discontinuities and the structure of rock mass, which are independent of the input parameters. The derived equations can analyze GSI values ranging from 0 to 100 within ±5% error. The engineering dimensions (EDs) such as the slope height, tunnel width, and foundation width were used together with representative elementary volume (REV) in jointed rock mass to define scale factor (sf) from 0.2 to 1 in evaluating the rock mass structure including joint pattern. The transformation of GSI into a scale-dependent parameter based on engineering scale addresses a crucial requirement in various engineering applications. The improvements proposed in this study were applied to a real slope which was close to the time of failure. The results of stability assessments show that the new proposals have sufficient capability to define rock mass quality considering EDs. |
| format | Article |
| id | doaj-art-50cdf9a5c22f4cd9a876db6645680388 |
| institution | Kabale University |
| issn | 1674-7755 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Rock Mechanics and Geotechnical Engineering |
| spelling | doaj-art-50cdf9a5c22f4cd9a876db66456803882025-01-17T04:49:12ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552025-01-01171154167A complementary approach to quantify the basic GSI chart considering scale effect on rock structureHarun Sonmez0Gulseren Dagdelenler1Yilmaz Ozcelik2Murat Ercanoglu3Applied Geology Division, Geological Engineering Department, Faculty of Engineering, Hacettepe University, Beytepe, Ankara, 06800, Türkiye; Corresponding author.Applied Geology Division, Geological Engineering Department, Faculty of Engineering, Hacettepe University, Beytepe, Ankara, 06800, TürkiyeMining Engineering Department, Faculty of Engineering, Hacettepe University, Beytepe, Ankara, 06800, TürkiyeApplied Geology Division, Geological Engineering Department, Faculty of Engineering, Hacettepe University, Beytepe, Ankara, 06800, TürkiyeGeological strength index (GSI) has been widely used as an input parameter in predicting the strength and deformation properties of rock masses. This study derived a series of equations to satisfy the original GSI lines on the basic GSI chart. Two axes ranging from 0 to 100 were employed for surface conditions of the discontinuities and the structure of rock mass, which are independent of the input parameters. The derived equations can analyze GSI values ranging from 0 to 100 within ±5% error. The engineering dimensions (EDs) such as the slope height, tunnel width, and foundation width were used together with representative elementary volume (REV) in jointed rock mass to define scale factor (sf) from 0.2 to 1 in evaluating the rock mass structure including joint pattern. The transformation of GSI into a scale-dependent parameter based on engineering scale addresses a crucial requirement in various engineering applications. The improvements proposed in this study were applied to a real slope which was close to the time of failure. The results of stability assessments show that the new proposals have sufficient capability to define rock mass quality considering EDs.http://www.sciencedirect.com/science/article/pii/S1674775524003378Basic GSI chartEngineering dimension (ED)Hoek and Brown failure criterionQuantification of GSIQuantitative GSI chartScale effect |
| spellingShingle | Harun Sonmez Gulseren Dagdelenler Yilmaz Ozcelik Murat Ercanoglu A complementary approach to quantify the basic GSI chart considering scale effect on rock structure Journal of Rock Mechanics and Geotechnical Engineering Basic GSI chart Engineering dimension (ED) Hoek and Brown failure criterion Quantification of GSI Quantitative GSI chart Scale effect |
| title | A complementary approach to quantify the basic GSI chart considering scale effect on rock structure |
| title_full | A complementary approach to quantify the basic GSI chart considering scale effect on rock structure |
| title_fullStr | A complementary approach to quantify the basic GSI chart considering scale effect on rock structure |
| title_full_unstemmed | A complementary approach to quantify the basic GSI chart considering scale effect on rock structure |
| title_short | A complementary approach to quantify the basic GSI chart considering scale effect on rock structure |
| title_sort | complementary approach to quantify the basic gsi chart considering scale effect on rock structure |
| topic | Basic GSI chart Engineering dimension (ED) Hoek and Brown failure criterion Quantification of GSI Quantitative GSI chart Scale effect |
| url | http://www.sciencedirect.com/science/article/pii/S1674775524003378 |
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